Protein disulfide isomerase cleaves allosteric disulfides in histidine-rich glycoprotein to regulate thrombosis
© 2024. The Author(s)..
The essence of difference between hemostasis and thrombosis is that the clotting reaction is a highly fine-tuned process. Vascular protein disulfide isomerase (PDI) represents a critical mechanism regulating the functions of hemostatic proteins. Herein we show that histidine-rich glycoprotein (HRG) is a substrate of PDI. Reduction of HRG by PDI enhances the procoagulant and anticoagulant activities of HRG by neutralization of endothelial heparan sulfate (HS) and inhibition of factor XII (FXIIa) activity, respectively. Murine HRG deficiency (Hrg-/-) leads to delayed onset but enhanced formation of thrombus compared to WT. However, in the combined FXII deficiency (F12-/-) and HRG deficiency (by siRNA or Hrg-/-), there is further thrombosis reduction compared to F12-/- alone, confirming HRG's procoagulant activity independent of FXIIa. Mutation of target disulfides of PDI leads to a gain-of-function mutant of HRG that promotes its activities during coagulation. Thus, PDI-HRG pathway fine-tunes thrombosis by promoting its rapid initiation via neutralization of HS and preventing excessive propagation via inhibition of FXIIa.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
Nature communications - 15(2024), 1 vom: 11. Apr., Seite 3129 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lv, Keyu [VerfasserIn] |
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| Links: |
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| Themen: |
9001-30-3 |
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| Anmerkungen: |
Date Completed 15.04.2024 Date Revised 30.04.2024 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1038/s41467-024-47493-0 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370943627 |
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| 520 | |a The essence of difference between hemostasis and thrombosis is that the clotting reaction is a highly fine-tuned process. Vascular protein disulfide isomerase (PDI) represents a critical mechanism regulating the functions of hemostatic proteins. Herein we show that histidine-rich glycoprotein (HRG) is a substrate of PDI. Reduction of HRG by PDI enhances the procoagulant and anticoagulant activities of HRG by neutralization of endothelial heparan sulfate (HS) and inhibition of factor XII (FXIIa) activity, respectively. Murine HRG deficiency (Hrg-/-) leads to delayed onset but enhanced formation of thrombus compared to WT. However, in the combined FXII deficiency (F12-/-) and HRG deficiency (by siRNA or Hrg-/-), there is further thrombosis reduction compared to F12-/- alone, confirming HRG's procoagulant activity independent of FXIIa. Mutation of target disulfides of PDI leads to a gain-of-function mutant of HRG that promotes its activities during coagulation. Thus, PDI-HRG pathway fine-tunes thrombosis by promoting its rapid initiation via neutralization of HS and preventing excessive propagation via inhibition of FXIIa | ||
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| 700 | 1 | |a Chen, Shuai |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Xulin |e verfasserin |4 aut | |
| 700 | 1 | |a Chiu, Joyce |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Haoqing J |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Yunyun |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Xiaodan |e verfasserin |4 aut | |
| 700 | 1 | |a Bowley, Sheryl R |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Zhaoming |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Ning |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Aizhen |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Shuofei |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jinyu |e verfasserin |4 aut | |
| 700 | 1 | |a Jin, Si |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Schmaier, Alvin H |e verfasserin |4 aut | |
| 700 | 1 | |a Ju, Lining A |e verfasserin |4 aut | |
| 700 | 1 | |a Hogg, Philip J |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Chao |e verfasserin |4 aut | |
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